<template>
  <el-container class="home-container">
    <!-- 头部区域 -->
  <el-header>
    <div class="box1">
      <img src="../assets/images/1.png" alt="">
      <span>电商后台管理系统</span>
    </div>
    <el-button type="info" @click="logout">退出登录</el-button>
  </el-header>
  <!-- 主体区域 -->
  <el-container>

    <!-- 侧边栏 -->
    <el-aside :width="iscollapse ? '64px' : '200px'">

      <div class="toggleBtn" @click="toggleCollapse">| | |</div>

      <!-- 侧边栏菜单区域 -->
      <el-menu class="el-menu-vertical-demo"
      @open="handleOpen"
      @close="handleClose"
      background-color="#333744" text-color="#fff" active-text-color="#409eff"
      unique-opened :collapse="iscollapse" :collapse-transition="false" router :default-active="$route.path">

        <!-- 一级菜单 -->
        <el-submenu :index="item.id + ''" :key="item.id" v-for="item in menulist">

          <!-- 一级菜单模板区域 -->
          <template slot="title">
            <!-- 图标 -->
            <i :class="iconsObj[item.id]"></i>
            <!-- 文本 -->
            <span>{{ item.authName }}</span>
          </template>

          <!-- 二级菜单 -->
          <el-menu-item :index="'/' + subItem.path" :key="subItem.id" v-for="subItem in item.children">
            <template slot="title">
              <!-- 图标 -->
              <i class="el-icon-menu"></i>
              <!-- 文本 -->
              <span>{{ subItem.authName }}</span>
            </template>
          </el-menu-item>

        </el-submenu>
      </el-menu>
    </el-aside>

    <!-- 右侧内容主体 -->
    <el-main>
      <!-- 路由占位符 -->
      <router-view></router-view>
    </el-main>
  </el-container>
</el-container>
</template>

<script>
export default {
  data () {
    return {
      // 左侧菜单数据
      menulist: [],
      iconsObj: {
        125: 'iconfont icon-user',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao'
      },
      iscollapse: false
    }
  },
  created () {
    this.getMenuList()
  },
  methods: {
    logout () {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    async getMenuList () {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      }
      this.menulist = res.data
      // console.log(res)
    },
    // 点击按钮实现，菜单的缩放与展开
    toggleCollapse () {
      this.iscollapse = !this.iscollapse
    }
  }
}
</script>

<style lang="less" scoped>
.home-container{
  height: 100vh;
}
.el-header{
  background-color: #373D41;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #fff;
  font-size: 20px;
  padding-left: 0;
  .box1{
    display: flex;
    align-items: center;
    img{
      width: 60px;
      height: 60px;
    }
    span{
      padding-left: 15px;
    }
  }

}
.el-aside{
  transition: 0.5s;
  background-color: #333744;
  .el-menu{
    border-right: none;
  }
  .toggleBtn{
    background-color: #4a5064;
    font-size: 10px;
    line-height: 24px;
    color: #fff;
    text-align: center;
    cursor: pointer;
  }
}
.el-main{
  background-color: #eaedf1;
}
.iconfont{
  margin-right: 10px;
}

</style>
